JPH05179741A - Floor structure - Google Patents

Abstract

PURPOSE:To provide a floor structure in which construction work is easy and noises are prevented when cars are running. CONSTITUTION:A pair of right and left first frame members 22 extending to the crossing direction against the longitudinal direction of a beam are arranged to constitute a floor unit 16 at the lower side of a second frame member 24 in addition to the second frame members 24 extending to the longitudinal direction of the beam 12 and a plurality of unit panels 26 extending to the crossing direction against the longitudinal direction of the beam 12. Both ends of the first frame member 22 are placed and fixed on the bracket 30 provided at the beam 12 side for laying down respective units 16. And the upper and lower dimensions of both frame members 22, 24 and the bracket 30 are determined so that the unit panel 26 may be held at the upper level than the beam 12 in this laid dawn condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure suitable for a floor of a parking lot or a warehouse.

[0002]

2. Description of the Related Art Conventionally, a floor of a parking lot, a warehouse or the like is generally formed by arranging a large number of panels on a horizontal beam and sequentially joining them.

For example, in Japanese Utility Model Publication No. 53-34190, a floor without a gap is formed by fixing a plurality of panels each having a special shape one by one by fillet welding and fixing them on a beam. What you have done is shown.

In recent years, a plurality of panels have been integrated into a unit and the plurality of units have been laid on a beam on site.

An example of this unit is shown in FIGS. The illustrated unit 90 has a plurality of aggregates 92 arranged in parallel with each other, and a large number of panels 94 orthogonal to the aggregates 92 are joined to the upper surfaces of these aggregates 92, and these panels are also joined together. The edge of 94 is covered with a guard 96. Each panel 94 has a shape having a horizontal top wall and side walls extending downward from the left and right ends of the top wall, and the portions shown by circles 98 in each side wall are welded to each other, thereby mutually The side walls of the adjacent panels 94 are joined in a state where they are in contact with each other without a gap.

At the site, both ends of each panel 94 are placed and fixed on the upper surface of the beam, whereby the units 90 are laid on the beam, and the floor is formed by these units 90.

[0007]

First, in the structure disclosed in the above publication, the work of joining the panels and the work of joining the panels and the beams have to be carried out on site one by one for each panel. Construction is not easy, and there is the inconvenience that it takes a lot of time to complete. In particular, since the work of constructing the floors of the second floor and above is work at a high place, it is desirable to reduce the number of man-hours at the site as much as possible in terms of safety. Furthermore, with this structure, when plating or painting is applied to prevent rusting of each panel,
There is the inconvenience of having to perform plating or painting work one by one.

On the other hand, according to the structures shown in FIGS. 12 to 14, since the plurality of panels 94 are integrated in advance to form the unit 90, the unit 90 is simply joined to the upper surface of the beam. , It is possible to form a floor.
However, with this structure, each panel 9
Although it is not necessary to join the four members together, a large number of man-hours are still required to join the lower surfaces of all the panels 94 to the upper surfaces of the beams, and therefore a lot of time is still required for the construction.

Also, instead of joining the ends of all the panels 94 to the beams, only some of the panels 94, for example, the ends of the left and right panels 90 (both upper and lower sides in FIG. 12) are joined to the beams. However, although the unit 90 can be laid, since there is variation in the height position of the lower surface of each panel 94, a gap is likely to occur between the panel 94 not joined to the beam and the upper surface of the beam. .. Therefore, when a large dynamic load is applied from above by driving a car on the unit 90 or the like, the panel 94 that has not been in contact with the beam until then is pushed down and abuts on the upper surface of the beam, which causes noise. May cause

Further, in this structure, it is possible to perform plating and coating by immersing the entire unit 90 in the molten metal or the paint at a stage after the unit 90 is assembled. At the stage of, panel 9
Since the four parts are joined in contact with each other, the surfaces of these side walls cannot be plated or the like, and the plating or the like can be practically performed only on the top wall portion of the panel 94. Therefore, if water enters between the side walls of the panel 94 after such a unit 90 is installed on the site, the side wall portion, that is, the portion not plated is likely to be rusted.

In view of the above circumstances, the present invention provides a floor structure that is easy to construct and has less noise, and more preferably, a floor structure that can reliably perform plating and painting with simple work. The purpose is to do.

[0012]

SUMMARY OF THE INVENTION The present invention is a floor structure in which a plurality of floor units are laid side by side on a plurality of beams that extend in one substantially horizontal direction. From the floor unit, a pair of left and right first aggregates extending in a direction orthogonal to the longitudinal direction of the beam and a first frame of the first bone A plurality of second aggregates that are joined to the upper surface of the member in a state orthogonal thereto, extend in a direction orthogonal to the longitudinal direction of the beam, and are joined together to form a floorboard as a whole, and 2 A plurality of unit members joined to the upper surface of the aggregate in a state orthogonal to the upper surface of the aggregate, and both end portions of the first aggregate are placed and fixed on the upper surface of the floor plate attachment portion. 1 The above unit with both ends of the aggregate placed on the upper surface of the floor plate mounting portion As wood is supported a position above the beam, the floor mounting portion, in which the first aggregate, and the vertical dimension of the second aggregate set (claim 1).

Here, the shape of the unit member is not particularly limited, but the unit member includes a substantially horizontal ceiling wall portion and a first side wall portion extending downward from one of the width direction end portions of the ceiling wall portion. A second side wall portion that extends downward from the other of the widthwise end portions and has a vertical dimension larger than that of the first side wall portion, and a first joint portion that extends inward in the widthwise direction from a lower end of the first side wall portion. And a second joint portion that extends outward from the lower end of the second side wall portion in the width direction and has a width dimension larger than that of the first side wall portion. The first joint portion of the unit member adjacent to this is superposed on the joint portion, and a gap is maintained between the second side wall portion connected to the second joint portion and the first side wall portion connected to the first joint portion. By connecting the unit members to each other in the closed state, more excellent effects as described later can be obtained. It is (Claim 2).

[0014]

According to the structure of claim 1, each floor unit is reinforced by the first aggregate and the second aggregate provided on each floor unit, and both end portions of the left and right first aggregates are fixed. The floor units are laid by the work of placing the floor unit on the floor plate mounting portion protruding from a part of the beam and fixing it. Moreover, when the floor unit is laid in this way, each unit member is supported at a position higher than the beam because of the vertical dimension relationship between the floor plate mounting portion and both aggregates. Even if a large dynamic depressing load is applied from above the member due to traveling of the vehicle, the unit member does not contact the beam and generate noise.

Further, according to the structure of claim 2, only the joint portions formed at the lower end portions of both side wall portions of each unit member are joined to each other, and the side wall portion of one unit member and the unit adjacent thereto. Since a gap is secured between the side wall portion of the member, both side wall portions are exposed to the outside. Therefore, even after the floor unit has been assembled, it is possible to plate or coat almost the entire surface of each unit member constituting the floor unit.

[0016]

An embodiment of the present invention will be described with reference to the drawings. In addition, in this embodiment, an example in which the structure of the present invention is applied to the rooftop floor of a one-story parking lot as shown in FIG.
The present invention is not limited to this, and can be suitably used for floors of various structures, particularly upper floors of structures having a plurality of floors.

The parking lot shown in FIG. 11 is provided with a pillar 10 erected on the ground, and a horizontal beam 11 extending in one direction is fixed to the lower portion of the pillar 10 and the pillar 10 is also provided. A second-story beam (hereinafter simply referred to as “beam”) 12 extending in the same direction as the first-story beam 11 by using a reinforcing member 14 at the upper end.
Is fixed. The floor unit 16 and the wire mesh plate 18 are laid on the beam 12 to form a rooftop floor.

As shown in FIG. 2, the wire netting plates 18 are arranged in the central two rows of the floor to form a traveling path of the vehicle, and the floor units 16 are arranged in the three rows on both outsides thereof. The beams 16 are arranged in both the longitudinal direction of the beam 12 (left-right direction in FIG. 2) and the direction orthogonal thereto (up-down direction in FIG. 2). A white line 20 for indicating a parking area is drawn in the area constituted by the floor unit 16, and in this embodiment, the vehicle is parked on the left and right sides of the floor in the same direction as the longitudinal direction of the beam 12. A large number of parking areas 21a are provided, and a walking passage 21b extending in the direction orthogonal to the longitudinal direction of the beam 12 is secured between the parking area 21a and the area where the wire netting plate 18 is arranged.

The layout of the first floor is also set to be the same as the layout of the roof floor. That is, the vehicle running passage on the first floor is provided below the wire mesh plate 18 on the rooftop floor, and similarly, the parking area on the first floor is located directly below the parking area 21a and directly below the walking path 21b. Each floor has a walkway.

As shown in FIG. 3, each floor unit 16 is
Two right and left first aggregates 22 extending in a direction orthogonal to the longitudinal direction of the beam 12 and a plurality of second aggregates extending in the longitudinal direction of the beam 12
It is composed of an aggregate 24 and a large number of unit panels (unit members) 26 forming a floorboard. The first aggregate 22 is made of a steel material having a C-shaped cross section, the second aggregate 24 is made of a square pipe-shaped steel material, and is formed on the upper surfaces of both the first aggregates 22 so as to be orthogonal to each other. Both ends of the second aggregate 24 are fixed.

The unit panel 26 extends in a direction orthogonal to the longitudinal direction of the beam 12 and has a front shape as shown in FIG. That is, the unit panel 26 includes a horizontal ceiling wall portion 26a, a first sidewall portion 26b and a second sidewall portion 26c extending downward from both ends in the width direction of the ceiling wall portion 26a,
A protruding portion (first joint portion) 2 protruding from the lower end of the first side wall portion 26b to the inner side in the width direction of the unit panel 26 (right side in FIG. 4).
6d and a bottom wall portion (constituting a second joint portion) extending from the lower end of the second side wall portion 26c to the outside in the width direction (right side in FIG. 4).
26e and a receiving portion (constituting a second joint portion) 26f extending obliquely upward from the end portion of the bottom wall portion 26e, and the entire shape is undulating in the vertical direction. Further, the vertical dimension of the second side wall portion 26c is set to be longer than the vertical dimension of the first side wall portion 26b by approximately the thickness of the bottom wall portion 26e,
The width dimension of the bottom wall portion 26e (the dimension in the left-right direction in FIG. 4) is
It is set to be larger than the width dimension of the protruding portion 26d.

Then, the unit panels 26 are joined side by side in the direction orthogonal to the longitudinal direction thereof, and the unit panels 26 are joined to the upper surface of the second aggregate 24, whereby the floor unit 16 is joined. The whole is integrated. Specifically, as shown in FIG. 5, the outer side surface of the boundary corner between the second side wall portion 26c and the bottom wall portion 26e of the unit panel 26 is joined to the upper surface of the second aggregate 24 by fillet welding. As a result, each unit panel 26 and the second aggregate 24 are connected. Further, on the inner side surface of the boundary corner portion between the bottom wall portion 26e and the receiving portion 26f in one unit panel 26, the protruding portion 26 in the unit panel 26 adjacent to this is formed.
In a state where the lower surface of d is overlapped, the second side wall portion 26c is provided with a plurality of small-diameter through-holes provided at a large number of the second side wall portions 26c.
The unit panels 26 are connected to each other by intermittently connecting the side wall portion 26c and the first side wall portion 26b by plug welding.

Instead of such plug welding, the inner surface of the boundary corner between the bottom wall portion 26e and the receiving portion 26f and the protruding portion 2 are replaced.
The end face of 6d may be joined by fillet welding.

Here, a gap 28 is secured between the second side wall portion 26c of one unit panel 26 and the first side wall portion 26b of the unit panel 26 adjacent thereto, thereby opening upward. A large number of bottomed guide grooves are formed in a state of extending in the longitudinal direction of the unit panel 26 (that is, the direction orthogonal to the longitudinal direction of the beam 12). The width of the gap 28 is not particularly limited, but about 2 mm is particularly suitable.

On the other hand, the beam 12 is made of a steel material having an H-shaped cross section as shown in FIGS.
2a and the top wall 1 formed at the upper and lower ends of the central wall 12a
2b and the bottom wall 12c. A bracket (floor plate mounting portion) 30 made of the same H-shaped steel is fixed to an appropriate position on the upper surface of the bottom wall 12c of the beam 12 in a state of protruding in a direction orthogonal to the longitudinal direction of the beam 12. Then, both ends of the first aggregate 22 of each floor unit 16 are placed on the upper surface of the bracket 30 and fixed by the bolts 31, so that each floor unit 16 is laid on the beam 12. There is.

Here, the bracket 30 and the first aggregate 2
The sum of the vertical dimensions of 2 and the second aggregate 24 is set to be larger than the vertical dimensions of the central wall 12a and the top wall 12b of the beam 12. Therefore, the unit panel 26 in each floor unit 16 is supported at a position higher than the upper surface of the beam 12 by the difference between the two dimensions.

A predetermined gap is formed between the floor units 16.

Specifically, at both ends of each floor unit 16 in the longitudinal direction (direction orthogonal to the longitudinal direction of the beam 12), as shown in FIGS. The flat bar 32 is fixed, a gap 34 is formed between the flat bars 32, and a gap 35 larger than the gap 34 is formed below the gap 34. The width dimension d of the flat bar 32 and the gap 34 is not particularly limited, but when the width dimension of the flat bar 32 is about 3 mm, the width dimension d of the gap 34 is preferably about 2 mm.

Guide members 36, which are flat bars for surely guiding water downward, are provided on the lower surfaces of both ends of each unit panel 26 over the entire width of the floor unit 16.

On the other hand, on one side portion of each floor unit 16, more specifically, on the side portion of the unit panel 26 where the side wall portion 26b is exposed, on the outer surface of the side wall portion 26b, as shown in FIG. , 9 are fixed. The spacer 40 is made of a steel material having an inverted U-shaped cross section, and includes a top wall portion 40a and side wall portions 40b and 40c extending downward from both end portions of the top wall 40a, and one side wall portion 40c is a bolt 38. Each of the floor units is fixed to the side wall portion 26b, and a minute gap 42 is formed between the other side wall portion 40b and the side wall portion 26c of the unit panel 26 of the floor unit 16 adjacent thereto. 16
The laying position is set. As a result, the bottom wall portion of the unit panel 26 and the receiving portion 26 are provided through the minute gap 42.
A guide groove is formed which extends to the upward space 43 formed by f.

At a position immediately below the gap 34, in other words, at a position above the beam 12, a gutter 44 that opens upward is disposed. The gutter 44 extends in the same direction as the beam 12, and its range is from the outer wall of the parking lot to the central wire mesh plate 18.
It is said that This gutter 44 has a bottom wall 44a.
And a side wall portion 44b rising upward from both sides of the bottom wall portion 44a, and is fixed to the ceiling wall 12b of the beam 12 by using a plurality of brackets 46 having an L-shaped cross section. ..

The bracket 46 includes a bottom plate 46a and a support plate 4 that rises upward from one end of the bottom plate 46a.
6b, and a through hole 46c as shown in FIG. 10 is provided in the upper part of the support plate 46b. Then, the upper surface of the bottom plate 46a is fixed to the back surface of the ceiling wall 12b, and bolts 48 are inserted into the through holes 46c and the through holes provided in the side walls 44b of the gutter 44 to form the side walls 44b and the bracket 46. Are connected and fixed, whereby the gutter 44 is attached to the beam 12.

Further, by making the through hole 46c an elongated hole extending in the vertical direction, the gutter 4 for the bracket 46 is formed.
The vertical position of 4 can be adjusted in a minute range. In this embodiment, the gutter 44 is mounted in an inclined state so that the outer end (the end on the side far from the wire mesh plate 18) of the gutter 44 is higher than the inner end (the end on the wire mesh plate 18 side). ing.

The inner end of this gutter 44 is the floor unit 16
From the laying area of the wire mesh plate 18 to the laying area of the wire mesh plate 18, and this end is closed by a closing plate 44c as shown in FIG. In addition, the blocking plate 44 is provided on the side wall 44b.
A through hole is provided in a portion slightly upstream of c, and an L-shaped pipe 50 is connected to the through hole in a downward state.

According to the structure as described above, in each floor unit 16, the second aggregate 24 extending in the longitudinal direction of the beam 12 and the plurality of unit panels 26 extending in the direction orthogonal to the longitudinal direction of the beam 12 are provided. In addition to being integrated, a pair of left and right first aggregates 22 extending in a direction orthogonal to the longitudinal direction of the beam is provided further below the second aggregate 24. The entire floor unit 16 can be laid by mounting both ends of the first aggregate 22 on the bracket 30 protruding from the beam 12 and fixing the bracket 30. Therefore, compared with the conventional structure in which a large number of unit panels are directly joined to the upper surface of the beam, the construction work at the site can be greatly simplified, which reduces the construction time and the safety of the site work. Can be improved. Moreover, both aggregates 22, 24 arranged in each floor unit 16,
Because of the vertical dimension relationship of the bracket 30 and the vertical dimension of the bracket 30, the entire unit panel 26 is supported at a position above the beam 12, so that a dynamic downward load is exerted by the vehicle traveling on each floor unit 16. Even if the action is performed, each unit panel 26 does not come into contact with the beam 12, and it is possible to reliably prevent generation of noise due to this contact.

Further, both aggregates 2 arranged in each unit 16
2, 24 can effectively reinforce each unit 16 in both vertical and horizontal directions.

Further, in this embodiment, the following effects can be obtained.

(A) When joining the unit panels 26 to each other, the bottom wall portion 26e and the receiving portion 26f of one unit panel 26,
The protruding portion 26d of the unit panel 26 adjacent to this is overlapped and only this portion is joined, and between the first side wall portion 26b of one unit panel 26 and the second side wall portion 26c of the other unit panel 26. Since the gap 28 is secured, the side wall portions 26b and 26c are exposed to the outside. Therefore, even after the floor unit 16 is assembled, it is possible to simply immerse the floor unit 16 in, for example, molten metal or paint, so that both side wall portions 26b and 26c of each unit panel 26 can be processed.
It is possible to apply plating or coating to almost the entire surface including the above, and thus it is possible to reliably prevent the generation of rust after installation.

(B) In the above structure, the unit panel 26 and the beam 1
The gutter 44 is provided by utilizing the gap provided between the unit panel 26 and the gap 32 formed between the unit panels 26.
Or a gap 34 formed between the floor units 16,
Since 35 and 42 are used for the water guide path, drainage on the floor can be efficiently performed.

That is, when the floor gets wet because rainwater or the like directly falls on the rooftop floor shown in the figure, or water or oil from a wet car falls on the floor, the water content or the like on the floor is absorbed by each floor unit. 16 enter the guide groove (gap 28 (FIG. 5)) formed between the unit panels 26, or through the gap 42 (FIG. 9) formed between the longitudinal ends of the floor unit 16. It enters the space 43 below it. The moisture or the like is guided in the longitudinal direction of the unit panel 26 (that is, the direction orthogonal to the longitudinal direction of the beam 12) through the gaps 28 and the spaces 43, and is formed between the widthwise end portions of the floor unit 16. Through the gap 35, it falls on the gutter 44 therebelow. Since the gutter 44 is inclined, the water content and the like flow along the gutter 44 toward the wire mesh plate 18, hit the blocking plate 44c, and connect the pipes 5 on both sides thereof.
It will be discharged downward through 0. Here, a wire mesh plate is arranged on the first floor below the pipe 50, similarly to the rooftop floor, and a walking passage on the first floor is secured at a position aside from the wire mesh plate. There is no risk that they will fall into pedestrians or parked cars.

The present invention is not limited to such an embodiment, and the following modes can be adopted as an example.

(1) In the present invention, regardless of the specific cross-sectional shapes of the beam 12, the bracket 30, and the aggregates 22 and 24, these may be appropriately set according to the required strength. Further, the number of the second aggregates 24 and the unit panels 26 in each unit 16 may be appropriately set according to the floor area and the application.

(2) In the present invention, regardless of the concrete fixing means of the floor plate attachment portion (bracket 30 of the above embodiment) and the first aggregate 22 on the beam 12 side, for example, both are fixed by welding or the like. You may do it. However, if the bolts 31 and the like as shown in the above-described embodiment are fixed by tightening, the laying work can be facilitated and the floor can be easily disassembled.

[0044]

As described above, according to the present invention, in addition to the second aggregate extending in the longitudinal direction of the beam and the plurality of unit members extending in the direction orthogonal to the longitudinal direction of the beam, further below the second aggregate. In addition, a pair of left and right first aggregates extending in a direction orthogonal to the longitudinal direction of the beam is provided to form a floor unit, while a floor plate mounting portion protruding in a direction orthogonal to the longitudinal direction is provided on the beam side. Since it is available, it is easy to transport to the site,
At the site, all floor units can be laid by a very simple operation of placing both ends of the first aggregate on the floor plate attachment portion and fixing them. Therefore, compared to the conventional structure in which a large number of unit members are respectively joined to the upper surface of the beam, the work at the site can be greatly simplified, which reduces the construction time and the safety of the site work. There is an effect that can be improved. Moreover, because of the vertical dimensions of both aggregates provided in each unit and the floor plate mounting portion, all the unit members are supported above the beam, so the vehicle runs on each floor unit. Even if a dynamic downward load is applied to the unit members by doing so, each unit member does not abut the beam, and it is possible to reliably prevent generation of noise due to this.

Further, according to the structure of claim 2, in joining the unit members, only the first joining portion and the second joining portion are joined together, and the first side wall portion and the second side wall portion are joined together. Since there is a gap in the floor, even after the floor unit is assembled, it is possible to perform plating and painting on almost the entire surface including both side wall parts with a simple work. There is an effect that rust can be surely prevented after installation.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view showing a main part of a floor structure according to an embodiment of the present invention.

FIG. 2 is a plan view showing the floor structure.

FIG. 3 is a partially cutaway plan view of a floor unit used in the floor structure.

FIG. 4 is a front view of a unit member constituting the floor unit.

FIG. 5 is a sectional view taken along line AA of FIG.
It is the figure rotated.

6 is a sectional view taken along line BB of FIG.
It is the figure rotated.

FIG. 7 is an enlarged view of part D in FIG.

8 is a cross-sectional view taken along the line CC of FIG.

9 is an enlarged view of a portion E in FIG.

FIG. 10 is a plan view showing an end of a gutter provided in the floor structure.

FIG. 11 is a front view showing an example of a parking lot to which the floor structure is applied.

FIG. 12 is a plan view showing an example of a conventional floor unit.

FIG. 13 is a front view of the floor unit.

14 is a sectional view taken along line FF in FIG.

[Explanation of symbols]

 12 Beam 16 Floor Unit 22 First Aggregate 24 Second Aggregate 26 Unit Panel (Unit Member) 26a Top Wall 26b First Side Wall 26c Second Side Wall 26d Projection (First Joint) 26e Bottom Wall ( 26f Receiving part (forming second joining part) 30 Bracket (floor plate attaching part)

Claims (2)

[Claims] 1. A floor structure in which a plurality of floor units are laid side by side on a plurality of beams extending in one substantially horizontal direction, and a floor board mounting projecting laterally from a part of the beams to the beams. While the floor unit is provided, the floor unit includes a pair of left and right first aggregates extending in a direction orthogonal to the longitudinal direction of the beam, and extending in the longitudinal direction of the beam, and is orthogonal to the upper surface of the first aggregate. A plurality of second aggregates joined in a state, extending in a direction orthogonal to the longitudinal direction of the beam, and joined to each other to form a floorboard as a whole, and to the upper surface of the second aggregate. It is composed of a plurality of unit members that are joined in a state of being orthogonal to each other, and both end portions of the first aggregate are placed and fixed on the upper surface of the floor plate attachment portion, and both end portions of the first aggregate are the above-mentioned. The unit member is placed on the upper surface of the floor plate mounting part and above the beam. A floor structure characterized in that the floor plate mounting portion, the first aggregate, and the second aggregate are set to have vertical dimensions so as to be supported. 2. The floor structure according to claim 1, wherein the unit member includes a substantially horizontal ceiling wall portion, a first side wall portion extending downward from one of widthwise end portions of the ceiling wall portion, and the width. A second side wall portion that extends downward from the other one of the direction end portions and has a vertical dimension larger than the first side wall portion; a first joint portion that extends inward in the width direction from a lower end of the first side wall portion; The second side wall portion extends from the lower end toward the outer side in the width direction and is formed in a shape having a second joint portion having a width dimension larger than that of the first side wall portion, and at the same time, the second joint portion of one unit member is formed. In a state in which the first joint portion of the unit member adjacent to this is superposed on the upper portion and a gap is maintained between the second side wall portion connected to the second joint portion and the first side wall portion connected to the first joint portion. A floor structure characterized in that the above unit members are connected to each other.